1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd64e9e66696f71c521f88f53739c93fe25c0bf0a3bd544afcb764ee4c56252. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2cc52626-d10e-4775-93e0-c646eeb0d141.json and https://artists.proofprofile.net/proofs/artist/2cc52626-d10e-4775-93e0-c646eeb0d141.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f122048db1aa6bc89529cd44e4bc0a7a5e9405e4e2479697e5996f51387d17b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1743555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5555f0f5be4f13e9cb9aae289ea42a516f5b6aa27b8a37d0edc93ad9f9d9a6. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1743560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf3d02f7c5d556786b09f3bcf4d7757fcc5b17fdab07351baafc97d552d1d93. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:22:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1713320.
Si Estuvieras Conmigo - Remasterizado 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad67b3cef1b437944cba02cf4fa4c521aeacce2032703f2ad8d0fb81d8b6764. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1713321.
Atado a Tu Recuerdo - Remasterizado 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ce21090a920063e3b1f5f2d23871487a3ac7723b99784865ec429b043f8357. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1713327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d888767940d6014b35421e3058784f7d88d9dada177a57ddfa054aeee79de1. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991003857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66974e7ead8ae288cd10fcbe1d28ccc1e6babb41c75d12e124c0e83003349119. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991031091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94739ef36a0e8227b0cc1f119d756a24e7b9af36374c99eaaeb1f08520436334. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991031093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda2c093c4ede79a1100113b122736aba2862912397e111c9f906960c70d1d37. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991031096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fa297d8c758651a4ab729f7206bbe0e4e565fa357c3fddb08444b8748c21f4. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:25:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991031097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ff9aa4ea5c6a8d7b631b5fe6f906dab91dbcf0c4252601976a174b774cfcd5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991031099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dead7d05673a59916096d90d44b69a32d81a212999c69babef1e6875ce879b9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371243580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb880faed1431f1c7ba40577f61fb9973492c2813c5c714d1a6a275c81afa8b4c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371243583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010ec658901c33a99b1850d5e587646f30ca3c3841da33cb97aeb92152dce3ce. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371243585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ea6f4c1abcedaf8acca2472436021dacda79765d6c2c8f96bd1738445f8972. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG991027533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f053656b93fa3237eeeebe4f1ca63bc6a3a0ec3465b87a08f0f539e94667f16. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:01:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF1596740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8397a1f02c886c520bbe245821a8642812ae832b43330c15114f68438be71c7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF1596741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00384e6f6ea984daebed269a2e3cf53b943a3c544363b2e9dedcb1f2a5371dda. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF1596742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3984f7226c9d89a007a7d6298af00884d2be0dac88882ed7c924735051262462. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF1596701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7f40edf15ae027ff84ede74d10253365640ed74cc80117ef7c16cbdf7d7779. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF1596702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4bb737369e7322f9507c34739c3000ab665e1f25747de9e7c2c381aeb26b39. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF1596707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e54f2d91193ecd4edd82798d41d374dd5d5b3f1a492ea4a09e65a780775093. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21783320.
Lo Grande Que Es Perdonar - Remasterizado 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed21f8bbf8be329148ab77559a1e33cc04554f967ba2b47400749eb4a475f786. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91677698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fee111d834a6d008c4fab2d23213e340f776aeedc366f0d2128e0b6ff7a0c2. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA012080981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d300e76a1115f879aa580812a89a87f2cbdadd994f9c3ac3716b973b30eb2d. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:59:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARQIH2291959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66a760d16499ebd91320fa1c675e9d62afc9f416f8f80a550ba242f97106adb. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARQIH2291960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257580849ceca9bb87f02422142e0b7a0a9a6d3174653fb0ea84bc8d701c1b89. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARQIH2291961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed825ce06531f88b84a41fddeb09d0b6cfd7ffc9c0386ea9efcee03f1e0cc06e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARQIH2291962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3324042029d22a82268b9ac0e1d23d4863990233a01ad6be74f64e93e3e12d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR5UH2300435.
Duele (Estadio Luna Park - Live Concert)
Duele - Estadio Luna Park - Live Concert
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e78ebd17c67e906d0e337b02d75be9721b384677e865f24e66c64fbea4c74d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR5UH2400261.
Ritmo Seven SESSION 1: Chili Fernandez (En Vivo)
Vete Con Él / Tu Traición / Orgullosa (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410228335dc294a019eff10a11f7f33a08f6ab65718395fde7bd4ad7245f940d. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AREA12200675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda68a42aed4dbb986995b178673e5ed9ce1357cb45ba9f88268f7015aeae1f2d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM122400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb47887398e9f7d85cae4280eea05e37a5de428a28510a9102d59f6803ac0f1f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG1901970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ac99ad23def6772a40f945a469a7263ff74d36a27b9e23b937ecdd4a138618. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB282119011.
CHILI FERNANDEZ / Zapada EN VIVO en UN POCO DE RUIDO!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb605c0501be53c27471623c8ed70281d7cb0fe73ff1cff5b2e3e7b6b09da57e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR5UH2400430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5531790cf93e4701d34132fe31799340d9fa61bf30cff48692fd6a2f2d0be8c1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR5UH2400431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed4e72e3ec5f683a0cbe49148ab5274d729089e830dfde2fccfd8f9a2dc4d3d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR5UH2400432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b73c1ae6d20d4a3e7f4fa53f7a0653901f803559324d52f745cf676f444d0d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR5UH2400433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb045c78b137d9c9e3c8442f0165de0f310ec1611a4a7d8a63f53b1bdb23795e4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR5UH2400434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe619d148cdd3fab622d81b9533087ff8d3102452937fd5e0cd83fdc10c2a26cb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYM122401115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd109698bbeb0b19f7e83ee9f1a91e3fa193b08c1bb4585f4779ac7629b9530f5. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AREA12200673.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83d67f0283f649a0f143de2fc4dabc3624da4923794d99001a4652b03781381. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AREA12200674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb767c2d606cbebee84820d48c18982431d4d70b5bd24a651b2c0a5ad6d05708c. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYB282119014.